The Air Jordan 4 “UNDFTD” was an extremely limited release, and here is a look at the unreleased sample version. This UNDFTD x Air Jordan 4 “Ballistic” Sample is a one-of-one pair that features a Military theme throughout, with a special wording on the tongue that reads, “Jordan Rare Air.” You can now find this sample pair available from depeche23mode on eBay.